liquid/test/integration/parsing_quirks_test.rb

# frozen_string_literal: true

require 'test_helper'

class ParsingQuirksTest < Minitest::Test
  include Liquid

  def test_parsing_css
    text = ' div { font-weight: bold; } '
    assert_equal text, Template.parse(text).render!
  end

  def test_raise_on_single_close_bracet
    assert_raises(SyntaxError) do
      Template.parse('text {{method} oh nos!')
    end
  end

  def test_raise_on_label_and_no_close_bracets
    assert_raises(SyntaxError) do
      Template.parse('TEST {{ ')
    end
  end

  def test_raise_on_label_and_no_close_bracets_percent
    assert_raises(SyntaxError) do
      Template.parse('TEST {% ')
    end
  end

  def test_error_on_empty_filter
    assert Template.parse('{{test}}')

    with_error_mode(:lax) do
      assert Template.parse('{{|test}}')
    end

    with_error_mode(:strict) do
      assert_raises(SyntaxError) { Template.parse('{{|test}}') }
      assert_raises(SyntaxError) { Template.parse('{{test |a|b|}}') }
    end
  end

  def test_meaningless_parens_error
    with_error_mode(:strict) do
      assert_raises(SyntaxError) do
        markup = "a == 'foo' or (b == 'bar' and c == 'baz') or false"
        Template.parse("{% if #{markup} %} YES {% endif %}")
      end
    end
  end

  def test_unexpected_characters_syntax_error
    with_error_mode(:strict) do
      assert_raises(SyntaxError) do
        markup = 'true && false'
        Template.parse("{% if #{markup} %} YES {% endif %}")
      end
      assert_raises(SyntaxError) do
        markup = 'false || true'
        Template.parse("{% if #{markup} %} YES {% endif %}")
      end
    end
  end

  def test_no_error_on_lax_empty_filter
    assert Template.parse('{{test |a|b|}}', error_mode: :lax)
    assert Template.parse('{{test}}', error_mode: :lax)
    assert Template.parse('{{|test|}}', error_mode: :lax)
  end

  def test_meaningless_parens_lax
    with_error_mode(:lax) do
      assigns = { 'b' => 'bar', 'c' => 'baz' }
      markup = "a == 'foo' or (b == 'bar' and c == 'baz') or false"
      assert_template_result(' YES ', "{% if #{markup} %} YES {% endif %}", assigns)
    end
  end

  def test_unexpected_characters_silently_eat_logic_lax
    with_error_mode(:lax) do
      markup = 'true && false'
      assert_template_result(' YES ', "{% if #{markup} %} YES {% endif %}")
      markup = 'false || true'
      assert_template_result('', "{% if #{markup} %} YES {% endif %}")
    end
  end

  def test_raise_on_invalid_tag_delimiter
    assert_raises(Liquid::SyntaxError) do
      Template.new.parse('{% end %}')
    end
  end

  def test_unanchored_filter_arguments
    with_error_mode(:lax) do
      assert_template_result('hi', "{{ 'hi there' | split$$$:' ' | first }}")

      assert_template_result('x', "{{ 'X' | downcase) }}")

      # After the messed up quotes a filter without parameters (reverse) should work
      # but one with parameters (remove) shouldn't be detected.
      assert_template_result('here',  "{{ 'hi there' | split:\"t\"\" | reverse | first}}")
      assert_template_result('hi ', "{{ 'hi there' | split:\"t\"\" | remove:\"i\" | first}}")
    end
  end

  def test_invalid_variables_work
    with_error_mode(:lax) do
      assert_template_result('bar', "{% assign 123foo = 'bar' %}{{ 123foo }}")
      assert_template_result('123', "{% assign 123 = 'bar' %}{{ 123 }}")
    end
  end

  def test_extra_dots_in_ranges
    with_error_mode(:lax) do
      assert_template_result('12345', '{% for i in (1...5) %}{{ i }}{% endfor %}')
    end
  end

  def test_contains_in_id
    assert_template_result(' YES ', '{% if containsallshipments == true %} YES {% endif %}', 'containsallshipments' => true)
  end
end # ParsingQuirksTest